96 



PROCEEDINGS ENTOMOLOGICAL SOCIETY 



sites of Datana integerrima is a species of Ooencyrtus, which in these 

 experiments was about half as numerous as T. sphingis. In many 

 cases it was found infesting eggs in the same mass as Telenomus 

 sphingis, but in some it occurred alone. This insect is about the 

 size of T. sphingis and to the unaided eye has the same general 

 appearance, but it may be easily distinguished by its white-and- 

 black legs. This species aids materially in reducing the numbers 

 of its host, as shown by the fact that out of about 8000 host eggs, 

 720 parasites of this species were reared. According to the views of 

 the writer what is doubtless the same insect has also been reared by 

 him from the eggs of Schizura concinna S. & A., at Orlando, Fla. 

 Baryscapus sp. is probably a hyperparasite of Telenomus sphin- 

 gis and Ooencyrtus sp., as it occurs in the same egg-masses with 

 them to a limited extent and is always days behind the others in 

 emerging. It is longer than the other species and one sex is black, 

 while the other is dark brown, while both sexes have red eyes. 

 Only 50 specimens of this insect were reared from nearly 8,000 eggs 

 of Datana integerrima, showing that it is not very abundant as 

 compared with the other parasites reared. 



TABLE III. Summary of egg-parasitism of Datana integerrima, September 



to November, 1907. 



